发明名称 |
Remote copy control method, storage sub-system with the method, and large area data storage system using them |
摘要 |
Two data centers located in the vicinity are connected using a synchronous transfer copy function, and one of the data centers is coupled with a third data center disposed at a remote location by an asynchronous remote copying function. The order whereat a storage sub-system located in the vicinity has received data from a host is consistently guaranteed, and the third data center holds the data. Further, each storage sub-system includes a function whereby, during normal operation, data can be exchanged and the data update state can be obtained by the storage sub-systems located in the two data centers that do not directly engage in data transmission.
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申请公布号 |
US2006085612(A1) |
申请公布日期 |
2006.04.20 |
申请号 |
US20050248382 |
申请日期 |
2005.10.11 |
申请人 |
HITACHI, LTD. |
发明人 |
NAKANO TOSHIO;NAKAMURA KATSUNORI;OGATA MIKITO;OKAMI YOSHINORI;HIGAKI SEIICHI;ABEI HIROSHI;KISHIRO SHIGERU |
分类号 |
G06F3/06;G06F12/16;G06F11/20;G06F12/00;G06F15/16 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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